Meisho Samson completed a famous double at Tokyo on Sunday, overwhelming 15 rivals in the Grade 1, $2.2 million Autumn Tenno Sho. His 2 1/2-length victory made him the first horse to win both the two-mile Spring Tenno Sho and the 1 1/4-mile Autumn Tenno Sho in the same year since racing's all-time leading money earner, TM Opera O, in 2000.